效费比视角下相控阵雷达多波束跟踪调度策略

doi:10.19665/j.issn1001-2400.2019.06.022

摘要/Abstract

摘要：

由于相控阵雷达跟踪工作模式占用其大部分资源,为了解决提高目标跟踪精度和容量相矛盾的问题,提出了一种兼顾跟踪精度和雷达时间资源的波束波形调度策略。首先,给出了目标跟踪模型; 进而定义了波束调度效费比和调度函数,在检测概率和跟踪精度的约束下,预测了当前所有目标的调度函数值,依据调度函数值选择当前时刻待调度的目标序列;随后,在有限资源和多波束方式跟踪的约束下,选择目标进行跟踪;最后,与常规波束波形调度和单波束调度两种方法进行比较。仿真验证了上述方法中调度函数和多波束跟踪方式的有效性和优越性。在跟踪目标数量不变的情况下,该调度策略有效地提高了目标平均跟踪精度和平均采样间隔时间,降低了失跟率。

关键词: 相控阵雷达, 波束调度效费比, 多波束方式, 波束波形调度, 跟踪精度, 采样间隔时间

Abstract:

The phased array radar tracking mode occupies most of its resources. In order to solve the problem of contradiction between improving target tracking accuracy and capacity, a beam waveform scheduling strategy considering both the tracking accuracy and radar time resources was proposed. First, the target tracking model is given. Furthermore, the beam scheduling cost-effectiveness ratio and scheduling function are defined. Under the constraints of detection probability and tracking accuracy, the scheduling function values of all current targets are predicted, and schedule target sequence is selected according to the scheduling function values under the constraint of the tracking resource and multi-beam tracking method. Finally, compared with methods of conventional beam waveform scheduling and single-beam scheduling, simulation verifies the effectiveness and superiority of the scheduling function and the multi-beam tracking method under the condition that the number of tracking targets is constant. The scheduling strategy effectively improves the average tracking accuracy and the average sampling interval time of the target, and reduces the loss rate.

Key words: phased array radar, beam scheduling cost-effectiveness ratio, multi-beam mode, beam waveform scheduling, tracking accuracy, sampling interval time

中图分类号:

TN958

刘一鸣,盛文,施端阳. 效费比视角下相控阵雷达多波束跟踪调度策略[J]. 西安电子科技大学学报, 2019, 46(6): 155-162.

LIU Yiming,SHENG Wen,SHI Duanyang. Multi-beam tracking scheduling strategy for phased array radar based on the cost-effectiveness ratio[J]. Journal of Xidian University, 2019, 46(6): 155-162.

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方法	RMSE/m	平均脉冲宽度/s	平均采样间隔/s	平均超门限次数比例/%
文中方法	198.19	0.012 988	0.952 691	20.489
对比方法1	234.73	0.018 000	1.327 814	30.595
对比方法2	222.84	0.013 010	0.949 519	25.168